Tetrahedron letters

Palladium (0)-catalyzed cyclization of 2-butenylene dicarbamates forming 4-vinyl-2-oxazolidones

T Hayashi, A Yamamoto, Y Ito

文献索引：Hayashi, Tamio; Yamamoto, Akihiro; Ito, Yoshihiko Tetrahedron Letters, 1987 , vol. 28, # 41 p. 4837 - 4840

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被引用次数: 45

摘要

There have been reported a number of palladium-catalyzed reactions which proceed by way of a-allylpalladium intermediates. 1 Tsuji and coworkers have developed the allylation of carbonucleophiles by use of ally1 carbonates2 and carbamates3 as effective allylating agents. Here we report a new type of palladium-catalyzed cyclization where 2-butenylene dicarbamates give 4-vinyl-2-oxazolidones in high yields. Dicarbamates 1 were readily obtained by treatment ...